Home / 15,191.43-20,964.11-8,476.67

Finding the Fourth Proportional to 15,191.43, 20,964.11 and 8,476.67

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Solution

The fourth proportional to 15,191.43, 20,964.11 and 8,476.67 is: 11,697.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,191.43 : 20,964.11 = 8,476.67 : x
  2. Step 2: Convert to fraction form
    15,191.43/20,964.11 = 8,476.67/x
  3. Step 3: Cross multiply
    15,191.43x = 20,964.11 × 8,476.67
  4. Step 4: Simplify right side
    15,191.43x = 177,705,695.11
  5. Step 5: Solve for x
    x = 177,705,695.11/15,191.43
  6. Step 6: Final answer
    x = 11,697.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.